21465210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2393}}^1$

素因数の和:2439

約数の個数: 64

約数和(自身を含む): 57915648

約数和(自身を除く): 36450438

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2393, 2990, 4485, 4786, 7179, 8970, 11965, 14358, 23930, 31109, 35895, 55039, 62218, 71790, 93327, 110078, 155545, 165117, 186654, 275195, 311090, 330234, 466635, 550390, 715507, 825585, 933270, 1431014, 1651170, 2146521, 3577535, 4293042, 7155070, 10732605, 21465210]

約数ペア:

[(1, 21465210), (2, 10732605), (3, 7155070), (5, 4293042), (6, 3577535), (10, 2146521), (13, 1651170), (15, 1431014), (23, 933270), (26, 825585), (30, 715507), (39, 550390), (46, 466635), (65, 330234), (69, 311090), (78, 275195), (115, 186654), (130, 165117), (138, 155545), (195, 110078), (230, 93327), (299, 71790), (345, 62218), (390, 55039), (598, 35895), (690, 31109), (897, 23930), (1495, 14358), (1794, 11965), (2393, 8970), (2990, 7179), (4485, 4786)]